Universal Licensing System
WSIZ391
Dublin San Ramon Services District
License details
| ULS identifier | 5160587 |
|---|
| Call sign | WSIZ391 |
|---|
| Radio service | PF |
|---|
| Status | A |
|---|
| Grant date | 2025-07-07 |
|---|
| Expiration | 2035-07-07 |
|---|
| Frequency range | 4975 MHz |
|---|
| Locations | 2 |
|---|
| Representative location | San Ramon, CONTRA COSTA, CA |
|---|
| Coordinates | 37.7472500, -121.9233889 |
|---|
| Source archive | l_micro.zip |
|---|
| Dataset refreshed | 2026-08-02 02:47:32 |
|---|
Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
|---|
| 1 | 1 | FXO | 4975.00000000 | | | | | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 1 | 4975.00000000 | | 9M10D7D |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | 9846 ALCOSTA BLVD, San Ramon, CONTRA COSTA, CA | 37.74725000, -121.92338889 | 182.900 m | TANK | 40.000 m structure / 40.000 m overall | |
| 2 | R | | 37.74966667, -121.91516667 | 137.800 m | | | |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | T | Cambium Networks 85009324001 | | S | 17.0000 | 90.0000 | | |
| 1 | 2 | R | Cambium Networks C050045C002 | | | 23.0000 | | | |
Control points
| Number | Address | County | Phone |
|---|
| 1 | 7051 DUBLIN BLVD, Dublin, CA | ALAMEDA | 9258752222 |
License history
| Date | File or call sign | Action |
|---|
| 2025-07-07 | WSIZ391 | LIISS |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 5160587 | 2026-08-02 02:47:32 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | WSIZ391 | ULS 5160587 | 2026-08-02 02:47:32 |
| Status | A | ULS 5160587 | 2026-08-02 02:47:32 |
| Service | PF | ULS 5160587 | 2026-08-02 02:47:32 |
| Grant Date | 2025-07-07 | ULS 5160587 | 2026-08-02 02:47:32 |
| Expiration Date | 2035-07-07 | ULS 5160587 | 2026-08-02 02:47:32 |